bs_flutter_datatable

Simple way to show data using datatable response with serverside processing

Feature:

• Customize style
• Searchable data
• Pagination
• Pagelength
• Orderable
• Serverside processing

Getting Started

Add the dependency in pubspec.yaml:

dependencies:
  ...
  bs_flutter_datatable: any

Datatables

Example: main.dart

To create a select box you need to import:

import 'package:bs_flutter_datatable/bs_flutter_datatable.dart';

Create source datatable:

class ExampleSource extends BsDatatableSource {

  static List<BsDataColumn> get columns => <BsDataColumn>[
    BsDataColumn(label: Text('No'), orderable: false, searchable: false, width: 100.0),
    BsDataColumn(label: Text('Code'), columnName: 'typecd', width: 200.0),
    BsDataColumn(label: Text('Name'), columnName: 'typenm'),
  ];

  @override
  BsDataRow getRow(int index) {
    return BsDataRow(index: index, cells: <BsDataCell>[
      BsDataCell(Text('${controller.start + index + 1}')),
      BsDataCell(Text('${response.data[index]['typecd']}')),
      BsDataCell(Text('${response.data[index]['typenm']}')),
    ]);
  }
}

To create row event listener you musth defined listener on data source

class ExampleSource extends BsDatatableSource {

// ...

  ValueChanged<dynamic> onEditListener = (value) {};
  ValueChanged<dynamic> onDeleteListener = (value) {};

// ...

}

And then use variable on pressed action

// ...
@override
  BsDataRow getRow(int index) {
    return BsDataRow(index: index, cells: <BsDataCell>[
      // ...
      BsDataCell(Row(
        children: [
          TextButton(
            onPressed: () => onEditListener(response.data[index]['typeid']), 
            child: Container(child: Text('Edit'))
          ),
          TextButton(
            onPressed: () => onDeleteListener(response.data[index]['typeid']),
            child: Container(child: Text('Edit'))
          )
        ],
      ))
      // ...
    ]);
  }
// ...

To handle that listener, you can set after request data success

  Future loadApi(Map<String, dynamic> params) {
    return http.post(
      // ..
    ).then((value) {
      // ...
      setState(() {
        // ...
        _source.onEditListener = (typeid) {
          /// Do edit
        };
        _source.onDeleteListener = (typeid) {
          /// Do delete
        };
      });
    });
  }

declare source and controller datatable:

// ...
class _MyAppState extends State<MyApp> {

  ExampleSource _source = ExampleSource();

  @override
  void initState() {
    _source.controller = BsDatatableController();
    super.initState();
  }

// ...

}

create table view:

// ...
    BsDatatable(
      source: _source,
      title: Text('Datatables Data'),
      columns: ExampleSource.columns,
      serverSide: loadApi,
    )
// ...

Serverside function to get datatable response

// ...
  Future loadApi(Map<String, dynamic> params) {
    return http.post(
      Uri.parse('http://localhost/flutter_crud/api/public/types/datatables'),
      body: params,
    ).then((value) {
      Map<String, dynamic> json = jsonDecode(value.body);
      setState(() {
        _source.response = BsDatatableResponse.createFromJson(json['data']);
        _source.onEditListener = (typeid) {
          /// Do edit
        };
        _source.onDeleteListener = (typeid) {
          /// Do delete
        };
      });
    });
  }
// ...

Note

• After request data from server has been successfully you need to update response data souece

// ...
  Future loadApi(Map<String, dynamic> params) {
    return http.post(
      // ...
    ).then((value) {
      // ...
      setState(() {
        /// Update response source data
        _source.response = BsDatatableResponse.createFromJson(json['data']);
        // ...
      });
    });
  }
// ..

To reload data you can use reload function

_source.controller.reload();

If you want to show data from List variable, you can add data to constructor source

class ExampleSource extends BsDatatableSource {

  ExampleSource({
    List? data,
  }) : super(data: data);

// ....
}

And now you cant set List variable in your widget

class Datatables extends StatefulWidget {
  @override
  _DatatablesState createState() => _DatatablesState();
}

class _DatatablesState extends State<Datatables> {

  ExampleSource _source1 = ExampleSource(
    data: [
      {'typecd': 'TP1', 'typenm': 'Type 1'},
      {'typecd': 'TP2', 'typenm': 'Type 2'},
      {'typecd': 'TP3', 'typenm': 'Type 3'},
      {'typecd': 'TP4', 'typenm': 'Type 4'},
      {'typecd': 'TP5', 'typenm': 'Type 5'},
    ]
  );

// ....

}

If you want to add data dynamicaly from button or anything, you can call method add or addAll. And if you want to update you call method put for remove call method remove or removeAt

// ...
    TextButton(
      onPressed: () {
        _source1.add({'typecd': 'TP1', 'typenm': 'Type ${_source1.datas.length}'});
      },
      child: Text('Add Row'),
    )
// ...